YASKAWA GA700 - EZ Open Loop Vector Control Method

3.10 Fine Tuning during Test Runs (Adjust the Control Function)
214 YASKAWA ELECTRIC SIEP C710617 05F YASKAWA AC Drive GA700 Technical Manual
◆ EZ Open Loop Vector Control Method
Table 3.24 Parameters for Fine Tuning the Drive (EZ Open Loop Vector Control Method)
Issue Parameter Number Solution Default Setting Recommended
Setting
• Torque or speed
response are slow.
• Hunting or oscillation
• High speed
C5-01 [ASR
Proportional Gain 1
(P)]
• Low speed
C5-03 [ASR
Proportional Gain 2
(P)]
• If torque or speed
response are slow,
increase the setting
value in increments of
5.00.
• If hunting or oscillation
occur, decrease the
setting value.
10.00 10.00 - 50.00
*1
• High speed
C5-02 [ASR Integral
Time 1 (I)]
• Low speed
C5-04 [ASR Integral
Time 2 (I)]
• If torque or speed
response are slow,
decrease the setting
value.
• If hunting or oscillation
occur, increase the
setting value.
0.500 s 0.300 to 1.000 s
*1
The drive cannot find
ASR proportional gain or
integral time for low
speed or high speed.
C5-07 [ASR Gain
Switchover Frequency]
Change the ASR
proportional gain and
ASR integral time to
conform to the output
frequency.
0.0%
0.0% to maximum
rotation speed
Hunting or oscillation C5-06 [ASR Delay Time]
If the rigidity of the
machine is unsatisfactory
and vibration is possible,
increase the setting value
in increments of 0.010.
0.004 s 0.004 to 0.020 s
*1
Step-out E9-xx parameters
Refer to the motor
nameplate or test report
and set E9-xx correctly.
- -
Oscillation when the
motor starts.
n8-51 [Pull-in Current @
Acceleration]
Increase the setting value. 80%
Increase in increments of
5%.
Motor stalls.
L7-01 to L7-04 [Torque
Limit]
Increase the setting value. 200%
Increase in increments of
10%.
*1 The best values for a no-load operation are different than the best values for actual loading operation.